56daae9d7b
This reverts commit 3c47a3beb51462ef8af1070b75123660059e97d0. Of course I remembered just after pushing the patch why we hadn't done this before :-) If you look in the glsl spec: http://www.khronos.org/registry/gles/specs/2.0/es_full_spec_2.0.24.pdf Section 3.7.10 Texture Completeness and Non-Power-Of-Two Textures you can see GLES 2.0 doesn't support mipmaps for npot textures. There is possibly some way we could support this in Cogl but at least it's not as simple as or-ing in the feature flag, sadly.
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2007,2008,2009 Intel Corporation.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <string.h>
|
|
|
|
#include "cogl.h"
|
|
#include "cogl-internal.h"
|
|
#include "cogl-context.h"
|
|
|
|
CoglFuncPtr
|
|
cogl_get_proc_address (const gchar* name)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
gboolean
|
|
cogl_check_extension (const gchar *name, const gchar *ext)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
_cogl_features_init (void)
|
|
{
|
|
CoglFeatureFlags flags = 0;
|
|
int max_clip_planes = 0;
|
|
GLint num_stencil_bits = 0;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
GE( glGetIntegerv (GL_STENCIL_BITS, &num_stencil_bits) );
|
|
/* We need at least three stencil bits to combine clips */
|
|
if (num_stencil_bits > 2)
|
|
flags |= COGL_FEATURE_STENCIL_BUFFER;
|
|
|
|
GE( glGetIntegerv (GL_MAX_CLIP_PLANES, &max_clip_planes) );
|
|
if (max_clip_planes >= 4)
|
|
flags |= COGL_FEATURE_FOUR_CLIP_PLANES;
|
|
|
|
#ifdef HAVE_COGL_GLES2
|
|
flags |= COGL_FEATURE_SHADERS_GLSL | COGL_FEATURE_OFFSCREEN;
|
|
#endif
|
|
|
|
flags |= COGL_FEATURE_VBOS;
|
|
|
|
/* Cache features */
|
|
ctx->feature_flags = flags;
|
|
ctx->features_cached = TRUE;
|
|
}
|
|
|